Sewing-machine light



www5

July 20 1926.

l. RWEEB SEWING MACHINE LIGHT Fied Dec. 14,

uNvENToR HM f/A oRNEY Patented July 20, 1926.

UNITED STATES PATENT GFFICE.

IRVING F. WEBB, OF ELIZABETH, NEW JERSEY, .ASSIGNOB 'T0 THE SINGERMANU'- FACT'URING COMPANY, 0F ELIZABETH JERSEY.

, NEW JERSEY, A CORPORATION 0F NEW SEWING-MACHINE LIGHT.

Application led December 14, 1921.

This invention relates to lighting attachments for sewing `machines andhas for an object to provide a lighting attachment which may be quicklyand easily applied to any ot' the usual types of sewing machines withoutspecial provision on such machines for receiving ya lighting fixture,and which may be so applied as to locate the lighting element in anydesired position ror at any desired level adjacent the sewing machineframe; either in rear, in front, above or beyond the free end of thesewing machine bracket-arm.

kA further object of the invention is to provide a sewing machinelighting attach-r ment which will operate satisfactorily and withoutnecessitating the frequent'renewal of lamp bulbs. f

The invention, in its preferred embodiment, comprises a lighting bracketincluding a base or supporting element, preferably formed of asheet-metal strip bentin the form of a U, the legs of the U beingslotted to receive a non-metallic iexible elastic strap equipped with abuckle or equivalent fastener, whereby the bracket may be strappedtightly in an desired position on a sew- 'ing machine bracket-arm orstandard; the strap being sufliciently elastic to maintain its grip uponthe supporting object without loosening up. The lighting element 1spreferably adjustably swivelled to an anglepiece which, in turn, isadjustably swivelled to a spring arm carried by the base element. Thesprin arm is the princi al element provided or absorbing or cus ioningthe vibration of the sewing machine frame and so supporting the li htthat the latter may ioat steadily even w en the sewing machine isoperated at high speeds and i's subjected to severe vibration.

In the accompanying drawings, Fig. 1 is a plan View of the lightingattachment. applied to the rear side of a sewing machine standard; thelamp and socket being disposed substantially parallel to and in rear ofthe sewing machine bracket-arm. Fig. 2 is a rear elevation of theattachment, partly in section. 1

In the embodiment of the invention chosen for the purpose of the-presentdisclosure, 1 indicates the base or su porting member of the li htingbracket. T is base is preferably ormed from a strip of rather stiffseran No. 522,232.

spring metal bent to a U-sha with the free ends of the legs of the U-ared outwardly in opposite directions to form feet 2 to which arepreferably secured as by rivets 3, 3, the friction-pads 4, 4, ofleather, rubber, cork or similar friction material. The feet 2, 2, ofthe base-member 1 are apertured or slotted at 5, 5, to receive theflexible nonmetallic strap 6 of leather, canvas or other thin {iexiblestrip material having elastic properties. The strap 6 is preferableqiipped with a friction grip buckle l w ereby the strap may be tightlystretched and secured circumferentially of a sewing machine standard orbracket-arm to hold the feet 2 tightly against the wall of said standardor arm.

' Rigidly secured to the base member 1 as by spot welding, riveting, orother suitable means, is one end of a flat'spring arm 8 bent to the formof an inverted The other end of the arm 8 has spot Welded or otherwiserigidly connected thereto a radially iiuted disk 9 meshing flatwise witha similar disk 10 rigid w1th one arm 11 of an angle-piece. A pivot screw12 passes through the arms 8, 11, and disks 9, 10, and a thumb-nut 13affords rovision for tightening the parts together 1n any desiredposition of adjustment of the angle-piece about the screw 12 as a pivot.The meshing, radially iiuted disks 9, 10, prevent relative slippage ofthe arms 8, 11 when the nut 13 is tightened.

The other arm 14 of the angle-piece also has iiXed thereto a radiallfluted disk 15 which is similar to the dislyi with a companion disk 16fixed to the lateral boss 17 on the tube 18. A pivot screw 19 isthreaded into the boss 17 and passes through the disks and the arm 14; athumbnut 2() serving to clamp the disks together in the desired positionof adjustment.

The tribe 18 is threaded atits opposite ends to receive the insulatingbushing 21 and nipple 22 supporting the usual socket 23 carrying theelectric lamp 24 and reiiector 25. The conductor cord 26 passes throughthe tube 18 and nipple 22 to the socket.

X The pivot screws 12 and 19 are disposed transversely to one another,thereby affording universal adjustment vfor the light relative to themember 1.

When the support 1 is strapped to a sew- 10 and meshes ing machineYstandard or bracket-arm subjected to severe vibration, the flatspringarm 8 is sufficiently resilient both iiatwse and edgewise due tothe curved form of such arm, to permit the lighting element to oat freeof destructive vibration. The base member 1 also affords a certainamount of resiliency when, as shown, it is made of a strip of springmetal. The friction pads 4 and strap 6 alw partially absorb or reducethe intensity of the vibration transmitted to A the member 1. Theelastic properties 'of the non-metallic strap willcause it to maintainits grip upon the sewing machine standard or bracket-arm withoutslipping orl loosening up.

By virtue of the use of a flexible and somewhat elastic strap, asdescribed, in Conjunction with a friction grip buckle separated from thesupport 1, an operator may tightly stretch and secure the strap around astraight or nonftapered column, as well as around a tapered column.Moreover, the friction pads 4, 4, will prevent slippage of the device ona. tapered column, such as the horizontal part of a sewing machinebracket-arm.

Having thus set forth the nature of the invention, what I claim hereinis-a l. A lighting bracket comprising a support in the form of ametallic strip bent intermediate its ends to form 'a U, the legs of theU being apertured and reveisely bent adjacent their extremities toprovide outwardly directed feet, friction pads secured to said feet, aflexible strap passing through the apertures in and enclosing the endsof said feet and adapted to be tightened in endless form around asupporting object, and a lighting element carried by said suport.

2. A lighting bracket comprising a U- shaped supporting member, aresilient arm secured at one end to the U-shaped member and curved toextend between the legs of the U-shaped member, and a lighting ele mentcarried by said resilient arm.

In testimony whereof, I have signed my named to this speciication.

IRVING F. WEBB.

